1388393244

Names of 1388393244

• Cardinal: 1388393244 can be written as One billion, three hundred eighty-eight million, three hundred ninety-three thousand, two hundred forty-four.

Scientific notation

• Scientific notation: 1.388393244 × 10⁹

Factors of 1388393244

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1750

Divisors of 1388393244

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 84 98 108 126 147 167 189 196 252 294 334 378 441 501 588 668 756 882 1002 1169 1323 1503 1571 1764 2004 2338 2646 3006 3142 3507 4509 4676 4713 5292 6012 6284 7014 8183 9018 9426 10521 10997 14028 14139 16366 18036 18852 21042 21994 24549 28278 31563 32732 32991 42084 42417 43988 49098 56556 63126 65982 73647 76979 84834 98196 98973 126252 131964 147294 153958 169668 197946 220941 230937 262357 294588 296919 307916 395892 441882 461874 524714 593838 692811 787071 883764 923748 1049428 1187676 1385622 1574142 1836499 2078433 2361213 2771244 3148284 3672998 4156866 4722426 5509497 7083639 7345996 8313732 9444852 11018994 12855493 14167278 16528491 22037988 25710986 28334556 33056982 38566479 49585473 51421972 66113964 77132958 99170946 115699437 154265916 198341892 231398874 347098311 462797748 694196622 1388393244
• Sum of all divisors σ(n): 4214972160
• Sum of proper divisors (its aliquot sum) s(n): 2826578916
• 1388393244 is an abundant number, because the sum of its proper divisors (2826578916) is greater than itself. Its abundance is 1438185672

Bases of 1388393244

• Binary: 1010010110000010011001100011100₂
• Hexadecimal: 0x52C1331C
• Base-36: MYM330

Squares and roots of 1388393244

• 1388393244 squared (1388393244²) is 1927635799984843536
• 1388393244 cubed (1388393244³) is 2676316521591492067779470784
• The square root of 1388393244 is 37261.1492576383
• The cube root of 1388393244 is 1115.5888472713

Scales and comparisons

• 1,388,393,244 seconds is equal to 44 years, 7 weeks, 4 days, 8 hours, 47 minutes, 24 seconds.
• To count from 1 to 1,388,393,244 would take you about eighty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1388393244 cubic inches would be around 93 feet tall.

Recreational maths with 1388393244

• 1388393244 backwards is 4423938831
• The number of decimal digits it has is: 10
• The sum of 1388393244's digits is 45
• More coming soon!